398392904

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:323

約数の個数: 128

約数和(自身を含む): 963379200

約数和(自身を除く): 564986296

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 127, 139, 182, 217, 248, 254, 278, 364, 403, 434, 508, 556, 728, 806, 868, 889, 973, 1016, 1112, 1612, 1651, 1736, 1778, 1807, 1946, 2821, 3224, 3302, 3556, 3614, 3892, 3937, 4309, 5642, 6604, 7112, 7228, 7784, 7874, 8618, 11284, 11557, 12649, 13208, 14456, 15748, 17236, 17653, 22568, 23114, 25298, 27559, 30163, 31496, 34472, 35306, 46228, 50596, 51181, 55118, 56017, 60326, 70612, 92456, 101192, 102362, 110236, 112034, 120652, 123571, 141224, 204724, 220472, 224068, 229489, 241304, 247142, 358267, 392119, 409448, 448136, 458978, 494284, 547243, 716534, 784238, 917956, 988568, 1094486, 1433068, 1568476, 1606423, 1835912, 2188972, 2866136, 3136952, 3212846, 3830701, 4377944, 6425692, 7114159, 7661402, 12851384, 14228318, 15322804, 28456636, 30645608, 49799113, 56913272, 99598226, 199196452, 398392904]

約数ペア:

[(1, 398392904), (2, 199196452), (4, 99598226), (7, 56913272), (8, 49799113), (13, 30645608), (14, 28456636), (26, 15322804), (28, 14228318), (31, 12851384), (52, 7661402), (56, 7114159), (62, 6425692), (91, 4377944), (104, 3830701), (124, 3212846), (127, 3136952), (139, 2866136), (182, 2188972), (217, 1835912), (248, 1606423), (254, 1568476), (278, 1433068), (364, 1094486), (403, 988568), (434, 917956), (508, 784238), (556, 716534), (728, 547243), (806, 494284), (868, 458978), (889, 448136), (973, 409448), (1016, 392119), (1112, 358267), (1612, 247142), (1651, 241304), (1736, 229489), (1778, 224068), (1807, 220472), (1946, 204724), (2821, 141224), (3224, 123571), (3302, 120652), (3556, 112034), (3614, 110236), (3892, 102362), (3937, 101192), (4309, 92456), (5642, 70612), (6604, 60326), (7112, 56017), (7228, 55118), (7784, 51181), (7874, 50596), (8618, 46228), (11284, 35306), (11557, 34472), (12649, 31496), (13208, 30163), (14456, 27559), (15748, 25298), (17236, 23114), (17653, 22568)]